Cuidado, este verbo pode não existir, a conjugação é dada como exemplo.
Afirmação
Forma simple
I must buy buy you must buy buy she must buy buy we must buy buy you must buy buy they must buy buy
Forma com V-ing
I must be buy buying you must be buy buying she must be buy buying we must be buy buying you must be buy buying they must be buy buying
Perfeito
I must have buy buyed you must have buy buyed she must have buy buyed we must have buy buyed you must have buy buyed they must have buy buyed
Perfeito com V-ing
I must have been buy buying you must have been buy buying she must have been buy buying we must have been buy buying you must have been buy buying they must have been buy buying
Negação
Forma simple
I must not buy buy you must not buy buy she must not buy buy we must not buy buy you must not buy buy they must not buy buy
Forma com V-ing
I must not be buy buying you must not be buy buying she must not be buy buying we must not be buy buying you must not be buy buying they must not be buy buying
Perfeito
I must not have buy buyed you must not have buy buyed she must not have buy buyed we must not have buy buyed you must not have buy buyed they must not have buy buyed
Perfeito com V-ing
I must not have been buy buying you must not have been buy buying she must not have been buy buying we must not have been buy buying you must not have been buy buying they must not have been buy buying
Forma interrogativa
Forma simple
must I buy buy? must you buy buy? must she buy buy? must we buy buy? must you buy buy? must they buy buy?
Forma com V-ing
must I be buy buying? must you be buy buying? must she be buy buying? must we be buy buying? must you be buy buying? must they be buy buying?
Perfeito
must I have buy buyed? must you have buy buyed? must she have buy buyed? must we have buy buyed? must you have buy buyed? must they have buy buyed?
Perfeito com V-ing
must I have been buy buying? must you have been buy buying? must she have been buy buying? must we have been buy buying? must you have been buy buying? must they have been buy buying?
Forma interro-Negação
Forma simple
must I not buy buy? must you not buy buy? must she not buy buy? must we not buy buy? must you not buy buy? must they not buy buy?
Forma com V-ing
must I not be buy buying? must you not be buy buying? must she not be buy buying? must we not be buy buying? must you not be buy buying? must they not be buy buying?
Perfeito
must I not have buy buyed? must you not have buy buyed? must she not have buy buyed? must we not have buy buyed? must you not have buy buyed? must they not have buy buyed?
Perfeito com V-ing
must I not have been buy buying? must you not have been buy buying? must she not have been buy buying? must we not have been buy buying? must you not have been buy buying? must they not have been buy buying?